Machine for making shingle-bands.



J. E. MAGMURRAY. MACHINE FOR MAKING SHINGLE BANDS.

APPLICATION FILED SEPT. 7, 1906.

3 SHEETS-SHEET 1.

Patented July 26, 1910.

J. E. MAOMURRAY. MACHINE POR MAKING SHINGLB BANDS.

APPLICATION FILED SEPT. 7, 1906.

Patented July 26, 1910.

3 SHEETS-SHEET 2.

J. E. MAGMURRAY.

MACHINE POR MAKING SHINGLE BANDS.

APPLICATION MLPD SEPT. 7, 1906.

965,31 l Patented July 26, 1910.

3 SHEETS-BHEET 3.

inizi P y n ric.

JAMES E. MACMURRAY, 0F CHICAGO, ILLINOIS, ASSIGNOR T0 ACME FLEXIBLECLASP COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MACHINE FOR MAKING SHINGLE-BANDS.

Specification of Letters Patent. Patented July 26, 191th Applicationfiled September 7, 1906. Serial No. 333,633.

T o all whom it may concern.'

Be it known that I, JAMES E. MACM'UR- RAY, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Machine-sfor Making Shingle-Bands, of which the following is a specification. i

The general objectof the present invention is to provide a machine whichcan be run continuously at high speed to turn out automatically lengthsof metal strip ready for use as shingle bands.

The invention provides for feeding a continuous metal strip from a reelinto the machine, straightening the stiip as it enters and guiding itaccurately into the bi'te of rolls which carry knives for cutting thestrip into lengths and punches and dies for perforating the strip onopposite sides of the cut. 'Provision is made for adjustment to securethe correct vdegree of bending to take out the ieel curve, and also foraccommodating different Widths of metal strips. Furthermore provisionis'inade for adjustment to accurately gage the strip as it entersbetween the punching and severing rolls so rolls.

as to insure the stripsbeing cut squarely across and perforations beinguniformly located. Y y

As before stated the strip is made pei:- fectly straightbefore beingsubjected to the action of the cutt-iiigoff and perforating It should beadded that the invention provides means for preventing vbending of thecut-off length of strip or the following portion of the strip by reasonof adherence to the punches or dies and corresponding tendency to followthe rolls.

Through means of the character above indicated the invention providesfor turning out a uniform product in the form of a perfectly straight,fiat length of metal strip cut off squarely at the ends and perforatedalike at both ends ready for use as a shingle band by wrapping the samearound a bundle of shinglesand'bringing the perforations into registryfor the reception of-a fastener, the product as turned out by the singleautomatic machine of the present invention requiring no furtheroperations to be performed upon it but being in the proper condition forpacking and shipping or otherwise handling in any desired quantities.

In the accompanying drawings C which illustrate a preferred form ofembodiment of the invention hereinafter specically described, Figure 1represents a centra-l longitudinal vertical section of an assembledinachine; Fig. 2 represents a top plan view of the' same with the upperor punch-carrying roll removed and certain housings in horizontalsection; Fig. 3 represents in detail on an enlarged scale and inhorizontal section certain strip 'guiding rollers and a portion of theholder or adjustable bracket supporting the saine together with anillustration of a section of -inetal strip passing between said rollers;Fig. l represents a vertical crosssectioii taken substantially on theline @1 -4 of Fig. l; Fig. 5 represents in vertical loiigitudinalsection on an enlarged scale knife, punch, and die carrying portions ofthe rolls relatively positioned as when the metal strip is beingsevered; Fig. 6 represents in perspective on an enlarged scale one ofthe punch and knife-carrying blocks; and Fig. 7 represents in endelevation certain strip-guiding and straightening devices.

The saine reference characters designate 4corresponding parts in theseveral views and the punch and die rolls 9 and 10 are secured to theseshafts respectively at the central portions thereof, said shafts beingoperatively connected by intermeshing gear wheels 11 and 12 and thelower shaft carrying a driving pulley 13. The-said rolls arecomparatively narrow and straddled at diainetricallyopposite points byblocks which occupy recesses in the rolls and constitute holders for thepunches, strip severing knives and stripping plungers, the blocks onthelower roll being bored to constitute dies for coperation with thepunches.

The reference numeral 14 designates the blocks applied to the upperroll, the outer surfaces of these blocks .being curved to conform withthe curvature of the periphery of said roll so as to preserve the peripheral continuity when the blocks i are seated in the recesses 15 ofthe rolls. Side flanges 16 of each block extend inwardly over the sidesof the roll and the blocksl are secured to the latter by taper pins 17driven through tapered openings in said flanges and in the roll. Eachblock is centrally cross grooved in its outer face as shown at 18 forthe' reception of a knife blade 19 whose beveled cutting edge 2Oprojects from the face of the block when the blade is seated in saidgroove. For the purpose of the exact lateral adjustment of this bladeshims 21 may be employed.` The blade is held in place by set screws 22en;`

tered through tapped openings in one end of the block and bearingagainst oneside 'of the blade or against the shim incase one is employed0n this side of the blade. The block is bored through from its curvedface to its rear side and reamed out in the latter for the reception ofprick punches 22u having conical heads 23 to seat in said reamed-outportions of the bores. Vhen the block is'in place the inner ends ofthese punches find a back stop in the base wall sof the roll recess asclearly illustrated in Fig.

thereby tending to thrust the-plungers outwardly and project their endsfrom the curved face of the block as illustrated-in Fig. 5. The punchesand-plungers. are located alonga central longitudinal line of the blockor holder, the plungers being eX- actly in said line but the punchesalternat- 1ng on. opposite sides of the same so vas to stand 1nstaggered relation to each other as clearly illustrated in Fig. 6. Thereis a pair of these punches projecting from the curved face of the blockon each side of the beveled knife edge 20 each pair being disposed atthe same angle to 'said edgeand the members of each pair being the samedistance apart and preferably equidistant from the plunger associatedwith them.

The blocks 27 of the lower roll 10 are exactly similar to the aboveVdescribed blocks carried by the roller 9 as Ito curvature of outerfaces, side flanges 28 taken over the sides of the roll and receivingtaper pins 29, cross groove 30 receiving knife blade 31 lwith cutting ede 32 beveled oppositely to the previously esignated cutting edge 20,

and bores to receive plungers 33 and springs 34. However, these blocks27 constitute` dies to coperate with'the punches 22 and to this end arebored in their curved faces as shown at 35 preferably with flaring vorrearned entrance portions as shown in Fig. 5. The plungers 33 preferablyhave exactly the same location in the blocks 27 as the plungers 24 havein the blocks 14 and of course the die-bores 35 then stand in the samerelation to these plungers 33 as the punches22 do to the plungers 24 sothat as -the punches arrivesuccessively for operattion u on. the metalstrip'each will be confronted by a die-'bore to receive its penetratingpoint. By the use of the shims the knife blades willbe closely adjustedso that their cutting edges will just pass each other when severing thestrip.

It will be seen that with the abovef described construction ofsynchronously rotating rolls a metal strip passed between them will becut into lengths measured by onehalfvthe circumference of a roll andeach length of strip will be perforated near each end with two holes ina linediagonal of the strip as illustrated in Fig. 2, one pair ofpunches carried by` one of the blocks 15 first operating to so perforatethe advancing end of the blank strip, then the latter vbeing advanceduntil a pair of punches in the opposite block or holder perforates itand then the'knife of the latter block operating inthe continued advanceof thev Ystr1p to sever the same whereupon the series of operations areimmediately repeated by the rother pairy of punches carried by thelast-mentioned block or holder followed by the other vpair ofpunches-carried by Ithe first-mentioned block or holder and the knife ofthe latter', all of course in cooperation with the die-bores and knivesof the lower roll. Thus in each half rotation of the rolls a lcompleteshingle band is turned out. The spring-pressed plungers 22 and 33prevent the metal strip from sticking upon the points ofthe punches orin the die-bores and following the rolls, these plungers ooperating tokeep the strip straight as it passes between the rolls.

' Supported 'by a 'cross beam 37 bolted to the housings 2 is a table 38over which the metal strip b passes to the rolls the upper surface ofsaid table .being in the tangential plane on which the rolls meet.Flanged bars 39 are bolted to the top of this table with their flangesconfronting as shown in j in Fig. 4 so as to provide a guideway 40 forthe metal strip, these bars being cross-slotted Where the bolts passthrough as shown at 41 in Fig. 2 so 'as to provide for lateraladjustment to suit different Widths of strip.

Against the under-side of this tablethere is pivotally supported aholder or bracket in the form of anelongated plate 42 with widened endportions one of which projects beyond the inner end of the table. Thisprojecting portion of said plate carries a pair .of up-standing bolts 43upon which are rotatively mounted a Vpair of rollers 44. 'Ilie latterare circumferentially grooved as shown at 45 to receive and guide thestrip b whose edges move against the bases of the grooves causing therollers to rotate as the strip advances thus obviating friction andmaintaining, proof against wear, a iinal guideway for the strip yas itis delivered to the rolls. The bolts 43 occupy cross-slots in the plate42 so as to provide for adjustment to suit different widths of strip,said bolts being sliouldered to\ engage the upper side of saidv plateand screwthreaded in reduced por? tions which pass through the slots toreceive clamping nuts 46. Said plate has a pivot hole at about themiddle to receive a screw-stud 47 entering theunder-side of the thetable 38 and the outervwidened end of the plate is formed with an arcslot 48 engaged by ascrew 49 also entering the underside of saidtable.With this screw loosened the plate 49 can be adjusted on its pivot tosecure exactly the correct lateral position of Athe guide rollers forproperly presenting the strip to the action of the rolls, then of coursebeing iixed at such position by tightening said screw 49.

As the metal strip is to be fed into the machine fromv a reel means areprovided for straightening the strip as it enters the niachine bybending it oppositely to the reel cur-ve. To this end the guideway forthe strip in its passage throuitjh` the machine does not terminate atthe outer or receiving .end with that formed by the flanged bars 39 anddesignated by the numeral/i0 but beyond the outer ends of said barsthere isv screwed to the upper side of the table 38 at the outer end ofthe latter a cross-plate 50 of hardened metal recessed in its under sideto provide a continuation of said guide- -way 40, and another hardenedplate 5l is set into the end of the table.` Thus the receivingend of thecomplete'strip guideway of the machine presents hardened metal edgesover which the incoming strip may be' forcibly draw-n at an angle totake out any curvature lwhich may be due to its being drawn from a reel.In order to provide for properly regulating the angle at which the stripis drawn over Vone hardened edge or the other a bracket 53 is pivoted bymeans of a screw stud 54 toone side of the table 38 and carries at itsouter-end a pair of rollers 55 between which the strip is guided. Theserollers maybe mounted to turn on bolts 56 shouldered to bea-rI againstone side of the bracket and screw-threaded in reduced portions whichextend through the. latter and receive clamping nuts 57. The bracket ismade angular in its outer portion so as to bringits roller-carrying partin proximity to the line of strip feed allowing for variationsin thewidth of strip, the rollers being suiiiciently `wide to accommodate anywidth Aof strip upon which the machine is designed same time i-t is tobe understood that this construction is susceptible of modificationwithin the scope of the invention.

That is claimed is: i

1.;In a machine of the character described, a strip guide-way havingopposed end edges between which the entering strip passes, means fordirecting the strip iiatwise but angularly to one or the other of saidedges, and means for directing the strip over such edge to straightenit. j

2. vIn a machine of the character described, a strip guideway havingopposed end edges between which the entering strip passes `and guidesfor the strip located beyond said edges and directing ,the stripflatwise but angular-ly thereto. v d

3. In a machine of the character described, a strip guideway havingopposed end edges between which the entering strip passes and guides forthe strip located beyond said edges and adjustable to direct the l 5. Ina machine of the character described, the combination of a 4fixed guide-.way with opposed end edges over either of which the entering strip isdrawn, and a guide bracket adjustable transverse said guideway andcarrying strip-guides outwardly beyond the latter, for the purposedescribed. s

6. In a machine of the character described, the combination of a fixedguideway with an end edge over which the entering strip passes,4 and aguide bracket adjustable transverse said guideway and carrying stripguide rollers outwardly beyond the latter, for the purpose described.

.7. In a machine of the character described, the combination of a fixedguideway with an end edge over which the entering strip passes, and aguide bracket pivotally/ mounted and adjustable transverse said guidewayand carrying strip-guides outwardly beyond the latter, for the purposeydescribed.

8. In a machine of the character described, the combination of a fixedguideway with opposed end edges overv either of .which the enteringstrip is drawn, and al guide bracket pivotally mounted and adjustabletransverse said guideway and 4carrying' strip-guides outwardly beyondthe latter, for the purpose described.

9. In a machine of the character described, the combination of a fixedguideway with an end edge over which the entering strip passes, and aguide bracket pivotally mounted and adjustable transverse said guidewayand carrying strip uide rollers outwardly beyond the latter, 01? thepurpose described.

10. In a machine of the character described, a guideway through whicht-he strip l enters, a holder adjustable crosswise thereof and guides onsaid holder beyond the end of said guideway from which the strip issues.

11. In a machine 'of the character described, a guideway through whichthestrip enters, a. holder pivoted for adjustment crosswise thereof andguides on salul holder beyond the end of said guideway from which thestrip issues.

12. In a machine of the character described, a guidewa through which thestrip enters, a holder adjustable crosswise thereof and a pair of guiderollers on said holder beyond the end of said guideway from which thestrip issues.

13. In a machine of the character described, a guideway through whichthe strip enters, a holder pivoted for adjustment v crosswise thereofand a pair of guide rollers on said holder beyond the end of saidguideway from which the strip issues.

14. In a machine of the character described, a guideway through whichthe strip enters, a holder adjustable crosswise thereof and a pair ofvcircumferentially grooved through which the strip enters, a holderpivotallv mounted below the same and projecting beyond the end thereoffrom which the strip issues, and guides mounted on the projecting partof said holder; substantially as and for the purpose described.

16. In a machine ofl the character described, the combination of aguideway through .which the strip enters, al holder pivotally mountedbelow the same and projecting beyond the end thereof from Wlich thestrip issues, and a pair of guide rollers mounted on the projecting partof said holder; substantially as and for the purpose described.

17. In a machine of fthe character described, the combination of aguidewayl through which thestrip enters, a holder pivotally mountedbelow the same and projecting beyond the end thereof from which thestrip issues and a pair of circumferentially grooved guide rollersmounted on the projecting part of said holder.

18. In -a machine of theA character described, a pair of rolls betweenwhich the strip is fed continuously, said rolls carrying coperatingstrip-severing knives, and

punches and dies and stripping plungers on .opposite sides thereof toperforate the strip dies to receive the punches and both havingspring-pressed stripping lungers to disengage-.the severed and perorated ends of the strip from the punches and dies.

JAMES E. MACMURRAY.

Witnesses:

l FRANK PARKER DAVIS,

LOUIS B. ERWIN.

